condition mean min max 0 h after light 2.82074 2.79032 2.85116 2 h after light 4.432165 1.29829 7.56604 4 h after light 2.178195 1.05345 3.30294 8 h after light 6.411655 6.15667 6.66664 12 h after light 8.549925 7.98847 9.11138 2 h after dark 6.689065 3.77164 9.60649 4 h after dark 10.65155 10.3418 10.9613 8 h after dark 12.167175 4.37305 19.9613 12 h after dark 11.14791 9.84532 12.4505